./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:14:37,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:14:37,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:14:37,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:14:37,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:14:37,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:14:37,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:14:37,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:14:37,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:14:37,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:14:37,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:14:37,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:14:37,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:14:37,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:14:37,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:14:37,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:14:37,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:14:37,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:14:37,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:14:37,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:14:37,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:14:37,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:14:37,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:14:37,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:14:37,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:14:37,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:14:37,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:14:37,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:14:37,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:14:37,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:14:37,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:14:37,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:14:37,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:14:37,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:14:37,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:14:37,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:14:37,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:14:37,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:14:37,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:14:37,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:14:37,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:14:37,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:14:37,697 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:14:37,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:14:37,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:14:37,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:14:37,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:14:37,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:14:37,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:14:37,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:14:37,699 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:14:37,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:14:37,700 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:14:37,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:14:37,701 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:14:37,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:14:37,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:14:37,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:14:37,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:14:37,704 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:14:37,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:14:37,704 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:14:37,704 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:14:37,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:14:37,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:14:37,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:14:37,986 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:14:37,986 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:14:37,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-29 02:14:38,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:14:39,143 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:14:39,151 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-29 02:14:39,166 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898d074cc/cda5103998d649f1925f30599745f472/FLAGabb15a18b [2023-08-29 02:14:39,180 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898d074cc/cda5103998d649f1925f30599745f472 [2023-08-29 02:14:39,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:14:39,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:14:39,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:14:39,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:14:39,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:14:39,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da08dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39, skipping insertion in model container [2023-08-29 02:14:39,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:14:39,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:14:39,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:14:39,683 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:14:39,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:14:39,806 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:14:39,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39 WrapperNode [2023-08-29 02:14:39,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:14:39,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:39,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:14:39,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:14:39,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,849 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 208 [2023-08-29 02:14:39,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:39,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:14:39,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:14:39,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:14:39,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:14:39,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:14:39,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:14:39,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:14:39,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (1/1) ... [2023-08-29 02:14:39,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:14:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:14:39,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:14:39,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:14:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:14:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:14:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:14:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:14:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:14:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:14:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:14:39,969 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:14:40,078 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:14:40,080 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:14:40,474 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:14:40,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:14:40,480 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:14:40,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:40 BoogieIcfgContainer [2023-08-29 02:14:40,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:14:40,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:14:40,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:14:40,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:14:40,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:14:39" (1/3) ... [2023-08-29 02:14:40,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf07c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:40, skipping insertion in model container [2023-08-29 02:14:40,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:39" (2/3) ... [2023-08-29 02:14:40,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf07c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:40, skipping insertion in model container [2023-08-29 02:14:40,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:40" (3/3) ... [2023-08-29 02:14:40,487 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2023-08-29 02:14:40,495 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:14:40,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:14:40,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-29 02:14:40,501 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:14:40,584 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:14:40,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 236 transitions, 477 flow [2023-08-29 02:14:40,672 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-29 02:14:40,672 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:40,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:40,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 236 transitions, 477 flow [2023-08-29 02:14:40,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 235 transitions, 473 flow [2023-08-29 02:14:40,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:14:40,695 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-29 02:14:40,698 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-29 02:14:40,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 235 transitions, 473 flow [2023-08-29 02:14:40,757 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-29 02:14:40,757 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:40,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:40,760 INFO L119 LiptonReduction]: Number of co-enabled transitions 4620 [2023-08-29 02:15:32,892 WARN L222 SmtUtils]: Spent 23.67s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:38,493 WARN L222 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:49,584 WARN L222 SmtUtils]: Spent 11.09s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:57,851 WARN L222 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:04,063 WARN L222 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:11,080 WARN L222 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:47,729 WARN L222 SmtUtils]: Spent 36.65s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:17:02,435 WARN L222 SmtUtils]: Spent 14.70s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:17:58,211 WARN L222 SmtUtils]: Spent 55.75s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:18:33,366 WARN L222 SmtUtils]: Spent 35.15s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:19:37,765 WARN L222 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:32,002 WARN L222 SmtUtils]: Spent 54.23s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:32,011 INFO L134 LiptonReduction]: Checked pairs total: 39612 [2023-08-29 02:20:32,011 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-08-29 02:20:32,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:20:32,043 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@355678de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:20:32,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-29 02:20:32,044 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:20:32,044 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:32,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:32,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:20:32,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:32,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:32,050 INFO L85 PathProgramCache]: Analyzing trace with hash 768, now seen corresponding path program 1 times [2023-08-29 02:20:32,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:32,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935384321] [2023-08-29 02:20:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:32,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:32,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:32,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935384321] [2023-08-29 02:20:32,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935384321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:32,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:32,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:20:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731656219] [2023-08-29 02:20:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:32,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:20:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:20:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:20:32,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 447 [2023-08-29 02:20:32,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:32,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 447 [2023-08-29 02:20:32,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:32,477 INFO L130 PetriNetUnfolder]: 75/373 cut-off events. [2023-08-29 02:20:32,480 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:32,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 373 events. 75/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1763 event pairs, 75 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 541. Up to 173 conditions per place. [2023-08-29 02:20:32,485 INFO L137 encePairwiseOnDemand]: 435/447 looper letters, 22 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 02:20:32,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 177 flow [2023-08-29 02:20:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:20:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:20:32,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 504 transitions. [2023-08-29 02:20:32,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5637583892617449 [2023-08-29 02:20:32,503 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 504 transitions. [2023-08-29 02:20:32,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 504 transitions. [2023-08-29 02:20:32,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:32,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 504 transitions. [2023-08-29 02:20:32,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,518 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,520 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 504 transitions. [2023-08-29 02:20:32,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 177 flow [2023-08-29 02:20:32,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:32,526 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 02:20:32,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 02:20:32,530 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2023-08-29 02:20:32,531 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 02:20:32,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:32,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:20:32,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:20:32,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:32,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 744712625, now seen corresponding path program 1 times [2023-08-29 02:20:32,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:32,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241585109] [2023-08-29 02:20:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:32,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:32,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241585109] [2023-08-29 02:20:32,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241585109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:32,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:32,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:20:32,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354640420] [2023-08-29 02:20:32,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:32,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:20:32,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:32,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:20:32,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:20:32,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 447 [2023-08-29 02:20:32,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:32,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:32,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 447 [2023-08-29 02:20:32,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:33,031 INFO L130 PetriNetUnfolder]: 112/486 cut-off events. [2023-08-29 02:20:33,032 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:33,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 486 events. 112/486 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2344 event pairs, 112 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 737. Up to 249 conditions per place. [2023-08-29 02:20:33,034 INFO L137 encePairwiseOnDemand]: 443/447 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 02:20:33,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2023-08-29 02:20:33,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:20:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:20:33,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2023-08-29 02:20:33,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5108128262490679 [2023-08-29 02:20:33,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 685 transitions. [2023-08-29 02:20:33,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 685 transitions. [2023-08-29 02:20:33,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:33,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 685 transitions. [2023-08-29 02:20:33,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:33,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:33,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:33,042 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 685 transitions. [2023-08-29 02:20:33,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2023-08-29 02:20:33,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:33,043 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 02:20:33,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 02:20:33,044 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2023-08-29 02:20:33,044 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 02:20:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:33,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:33,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:33,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:20:33,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:33,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1420049530, now seen corresponding path program 1 times [2023-08-29 02:20:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:33,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641573295] [2023-08-29 02:20:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:33,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641573295] [2023-08-29 02:20:33,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641573295] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:33,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:33,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121881769] [2023-08-29 02:20:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:33,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:33,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:33,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:33,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-29 02:20:33,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:33,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:33,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-29 02:20:33,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:34,691 INFO L130 PetriNetUnfolder]: 432/1062 cut-off events. [2023-08-29 02:20:34,692 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:20:34,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 1062 events. 432/1062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5103 event pairs, 329 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1978. Up to 838 conditions per place. [2023-08-29 02:20:34,695 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 64 selfloop transitions, 37 changer transitions 0/118 dead transitions. [2023-08-29 02:20:34,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 118 transitions, 442 flow [2023-08-29 02:20:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2023-08-29 02:20:34,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-29 02:20:34,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2023-08-29 02:20:34,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2023-08-29 02:20:34,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:34,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2023-08-29 02:20:34,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,705 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,705 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1164 transitions. [2023-08-29 02:20:34,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 118 transitions, 442 flow [2023-08-29 02:20:34,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:20:34,709 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 02:20:34,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 02:20:34,710 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-29 02:20:34,711 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 02:20:34,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:34,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:34,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:34,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:20:34,713 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:34,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash 508169636, now seen corresponding path program 1 times [2023-08-29 02:20:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:34,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460871535] [2023-08-29 02:20:34,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:35,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:35,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460871535] [2023-08-29 02:20:35,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460871535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:35,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:35,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:20:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820721839] [2023-08-29 02:20:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:35,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:20:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:20:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:20:35,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 447 [2023-08-29 02:20:35,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:35,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 447 [2023-08-29 02:20:35,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:36,431 INFO L130 PetriNetUnfolder]: 649/1694 cut-off events. [2023-08-29 02:20:36,431 INFO L131 PetriNetUnfolder]: For 245/260 co-relation queries the response was YES. [2023-08-29 02:20:36,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 1694 events. 649/1694 cut-off events. For 245/260 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10197 event pairs, 60 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 3734. Up to 721 conditions per place. [2023-08-29 02:20:36,440 INFO L137 encePairwiseOnDemand]: 419/447 looper letters, 145 selfloop transitions, 77 changer transitions 0/254 dead transitions. [2023-08-29 02:20:36,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 254 transitions, 1186 flow [2023-08-29 02:20:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:20:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:20:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2023-08-29 02:20:36,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46607009694258017 [2023-08-29 02:20:36,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2023-08-29 02:20:36,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2023-08-29 02:20:36,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:36,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2023-08-29 02:20:36,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:36,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:36,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:36,452 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1250 transitions. [2023-08-29 02:20:36,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 254 transitions, 1186 flow [2023-08-29 02:20:36,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 254 transitions, 1186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:36,463 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 02:20:36,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 02:20:36,464 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2023-08-29 02:20:36,464 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 02:20:36,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:36,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:36,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:36,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:20:36,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:36,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:36,466 INFO L85 PathProgramCache]: Analyzing trace with hash -185816610, now seen corresponding path program 1 times [2023-08-29 02:20:36,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:36,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453162286] [2023-08-29 02:20:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:36,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:36,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:36,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453162286] [2023-08-29 02:20:36,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453162286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:36,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964671961] [2023-08-29 02:20:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:36,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:36,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:36,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:36,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:37,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-29 02:20:37,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:37,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:37,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-29 02:20:37,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:39,002 INFO L130 PetriNetUnfolder]: 792/1957 cut-off events. [2023-08-29 02:20:39,003 INFO L131 PetriNetUnfolder]: For 1504/1526 co-relation queries the response was YES. [2023-08-29 02:20:39,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 1957 events. 792/1957 cut-off events. For 1504/1526 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11258 event pairs, 296 based on Foata normal form. 4/1932 useless extension candidates. Maximal degree in co-relation 5851. Up to 1323 conditions per place. [2023-08-29 02:20:39,012 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 237 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 02:20:39,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2311 flow [2023-08-29 02:20:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:20:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:20:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2785 transitions. [2023-08-29 02:20:39,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4153616703952274 [2023-08-29 02:20:39,018 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2785 transitions. [2023-08-29 02:20:39,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2785 transitions. [2023-08-29 02:20:39,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:39,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2785 transitions. [2023-08-29 02:20:39,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.66666666666666) internal successors, (2785), 15 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:39,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:39,033 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:39,034 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2785 transitions. [2023-08-29 02:20:39,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2311 flow [2023-08-29 02:20:39,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2293 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:39,047 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 02:20:39,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 02:20:39,050 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2023-08-29 02:20:39,050 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 02:20:39,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:39,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:39,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:39,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:20:39,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:39,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1371662751, now seen corresponding path program 1 times [2023-08-29 02:20:39,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:39,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904250725] [2023-08-29 02:20:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:39,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:39,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904250725] [2023-08-29 02:20:39,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904250725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:39,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:39,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:39,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872924225] [2023-08-29 02:20:39,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:39,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:40,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-29 02:20:40,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:40,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:40,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-29 02:20:40,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:42,695 INFO L130 PetriNetUnfolder]: 632/1690 cut-off events. [2023-08-29 02:20:42,696 INFO L131 PetriNetUnfolder]: For 1728/1750 co-relation queries the response was YES. [2023-08-29 02:20:42,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1690 events. 632/1690 cut-off events. For 1728/1750 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10180 event pairs, 26 based on Foata normal form. 5/1672 useless extension candidates. Maximal degree in co-relation 5506. Up to 691 conditions per place. [2023-08-29 02:20:42,705 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 175 selfloop transitions, 104 changer transitions 0/317 dead transitions. [2023-08-29 02:20:42,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 317 transitions, 2389 flow [2023-08-29 02:20:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:20:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:20:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2103 transitions. [2023-08-29 02:20:42,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42769981696156195 [2023-08-29 02:20:42,711 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2103 transitions. [2023-08-29 02:20:42,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2103 transitions. [2023-08-29 02:20:42,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:42,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2103 transitions. [2023-08-29 02:20:42,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.1818181818182) internal successors, (2103), 11 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:42,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:42,720 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:42,720 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 11 states and 2103 transitions. [2023-08-29 02:20:42,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 317 transitions, 2389 flow [2023-08-29 02:20:42,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 317 transitions, 2383 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:42,732 INFO L231 Difference]: Finished difference. Result has 119 places, 225 transitions, 1888 flow [2023-08-29 02:20:42,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1888, PETRI_PLACES=119, PETRI_TRANSITIONS=225} [2023-08-29 02:20:42,735 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 38 predicate places. [2023-08-29 02:20:42,735 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 225 transitions, 1888 flow [2023-08-29 02:20:42,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:42,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:42,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:42,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:20:42,736 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:42,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash 932939411, now seen corresponding path program 2 times [2023-08-29 02:20:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:42,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401464651] [2023-08-29 02:20:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:42,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401464651] [2023-08-29 02:20:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401464651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:43,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114707700] [2023-08-29 02:20:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:43,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:43,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:43,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:20:43,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 225 transitions, 1888 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:43,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:43,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:20:43,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:45,523 INFO L130 PetriNetUnfolder]: 697/1824 cut-off events. [2023-08-29 02:20:45,524 INFO L131 PetriNetUnfolder]: For 4034/4062 co-relation queries the response was YES. [2023-08-29 02:20:45,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7104 conditions, 1824 events. 697/1824 cut-off events. For 4034/4062 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11012 event pairs, 67 based on Foata normal form. 26/1823 useless extension candidates. Maximal degree in co-relation 7079. Up to 533 conditions per place. [2023-08-29 02:20:45,539 INFO L137 encePairwiseOnDemand]: 422/447 looper letters, 329 selfloop transitions, 93 changer transitions 3/463 dead transitions. [2023-08-29 02:20:45,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 463 transitions, 4138 flow [2023-08-29 02:20:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:20:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:20:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3370 transitions. [2023-08-29 02:20:45,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41884166045239873 [2023-08-29 02:20:45,546 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3370 transitions. [2023-08-29 02:20:45,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3370 transitions. [2023-08-29 02:20:45,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:45,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3370 transitions. [2023-08-29 02:20:45,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 187.22222222222223) internal successors, (3370), 18 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:45,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:45,566 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:45,567 INFO L175 Difference]: Start difference. First operand has 119 places, 225 transitions, 1888 flow. Second operand 18 states and 3370 transitions. [2023-08-29 02:20:45,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 463 transitions, 4138 flow [2023-08-29 02:20:45,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 463 transitions, 4128 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 02:20:45,592 INFO L231 Difference]: Finished difference. Result has 140 places, 263 transitions, 2535 flow [2023-08-29 02:20:45,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2535, PETRI_PLACES=140, PETRI_TRANSITIONS=263} [2023-08-29 02:20:45,593 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2023-08-29 02:20:45,593 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 263 transitions, 2535 flow [2023-08-29 02:20:45,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:45,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:45,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:45,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:20:45,594 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:45,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:45,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1098327645, now seen corresponding path program 3 times [2023-08-29 02:20:45,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:45,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363471204] [2023-08-29 02:20:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:46,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363471204] [2023-08-29 02:20:46,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363471204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:46,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:46,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:46,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080940912] [2023-08-29 02:20:46,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:46,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:46,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:46,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:20:46,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 263 transitions, 2535 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:46,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:46,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:20:46,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:48,279 INFO L130 PetriNetUnfolder]: 880/2319 cut-off events. [2023-08-29 02:20:48,279 INFO L131 PetriNetUnfolder]: For 8091/8131 co-relation queries the response was YES. [2023-08-29 02:20:48,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10085 conditions, 2319 events. 880/2319 cut-off events. For 8091/8131 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15357 event pairs, 99 based on Foata normal form. 25/2312 useless extension candidates. Maximal degree in co-relation 10055. Up to 738 conditions per place. [2023-08-29 02:20:48,292 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 338 selfloop transitions, 153 changer transitions 3/532 dead transitions. [2023-08-29 02:20:48,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 532 transitions, 5288 flow [2023-08-29 02:20:48,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:20:48,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:20:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3256 transitions. [2023-08-29 02:20:48,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4284774312409528 [2023-08-29 02:20:48,304 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3256 transitions. [2023-08-29 02:20:48,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3256 transitions. [2023-08-29 02:20:48,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:48,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3256 transitions. [2023-08-29 02:20:48,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 191.52941176470588) internal successors, (3256), 17 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,317 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,317 INFO L175 Difference]: Start difference. First operand has 140 places, 263 transitions, 2535 flow. Second operand 17 states and 3256 transitions. [2023-08-29 02:20:48,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 532 transitions, 5288 flow [2023-08-29 02:20:48,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 532 transitions, 5275 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 02:20:48,360 INFO L231 Difference]: Finished difference. Result has 164 places, 320 transitions, 3881 flow [2023-08-29 02:20:48,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=2527, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3881, PETRI_PLACES=164, PETRI_TRANSITIONS=320} [2023-08-29 02:20:48,361 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 83 predicate places. [2023-08-29 02:20:48,361 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 320 transitions, 3881 flow [2023-08-29 02:20:48,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:48,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:48,362 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:48,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:20:48,363 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:48,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash -869727405, now seen corresponding path program 4 times [2023-08-29 02:20:48,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350414974] [2023-08-29 02:20:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:48,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350414974] [2023-08-29 02:20:48,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350414974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:48,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:48,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023849387] [2023-08-29 02:20:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:48,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:48,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:49,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:20:49,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 320 transitions, 3881 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:49,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:49,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:20:49,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:50,902 INFO L130 PetriNetUnfolder]: 1172/3145 cut-off events. [2023-08-29 02:20:50,902 INFO L131 PetriNetUnfolder]: For 16596/16715 co-relation queries the response was YES. [2023-08-29 02:20:50,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14873 conditions, 3145 events. 1172/3145 cut-off events. For 16596/16715 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 23383 event pairs, 144 based on Foata normal form. 64/3164 useless extension candidates. Maximal degree in co-relation 14831. Up to 902 conditions per place. [2023-08-29 02:20:50,932 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 334 selfloop transitions, 206 changer transitions 2/580 dead transitions. [2023-08-29 02:20:50,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 580 transitions, 7101 flow [2023-08-29 02:20:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:20:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:20:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2364 transitions. [2023-08-29 02:20:50,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4407158836689038 [2023-08-29 02:20:50,937 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2364 transitions. [2023-08-29 02:20:50,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2364 transitions. [2023-08-29 02:20:50,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:50,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2364 transitions. [2023-08-29 02:20:50,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 197.0) internal successors, (2364), 12 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,947 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,947 INFO L175 Difference]: Start difference. First operand has 164 places, 320 transitions, 3881 flow. Second operand 12 states and 2364 transitions. [2023-08-29 02:20:50,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 580 transitions, 7101 flow [2023-08-29 02:20:51,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 580 transitions, 7043 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-29 02:20:51,025 INFO L231 Difference]: Finished difference. Result has 181 places, 394 transitions, 5824 flow [2023-08-29 02:20:51,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=3847, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5824, PETRI_PLACES=181, PETRI_TRANSITIONS=394} [2023-08-29 02:20:51,026 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 100 predicate places. [2023-08-29 02:20:51,026 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 394 transitions, 5824 flow [2023-08-29 02:20:51,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:51,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:51,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:51,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:20:51,027 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:51,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:51,027 INFO L85 PathProgramCache]: Analyzing trace with hash -740616625, now seen corresponding path program 5 times [2023-08-29 02:20:51,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:51,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783734886] [2023-08-29 02:20:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:51,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:51,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:51,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783734886] [2023-08-29 02:20:51,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783734886] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:51,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:51,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:51,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080680194] [2023-08-29 02:20:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:51,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:51,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:52,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:20:52,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 394 transitions, 5824 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:52,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:52,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:20:52,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:54,756 INFO L130 PetriNetUnfolder]: 1516/4057 cut-off events. [2023-08-29 02:20:54,756 INFO L131 PetriNetUnfolder]: For 31767/31914 co-relation queries the response was YES. [2023-08-29 02:20:54,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21156 conditions, 4057 events. 1516/4057 cut-off events. For 31767/31914 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 32063 event pairs, 182 based on Foata normal form. 108/4107 useless extension candidates. Maximal degree in co-relation 21105. Up to 965 conditions per place. [2023-08-29 02:20:54,871 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 457 selfloop transitions, 253 changer transitions 3/751 dead transitions. [2023-08-29 02:20:54,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 751 transitions, 10742 flow [2023-08-29 02:20:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:20:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:20:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3078 transitions. [2023-08-29 02:20:54,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303691275167785 [2023-08-29 02:20:54,890 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3078 transitions. [2023-08-29 02:20:54,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3078 transitions. [2023-08-29 02:20:54,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:54,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3078 transitions. [2023-08-29 02:20:54,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 192.375) internal successors, (3078), 16 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:54,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:54,902 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:54,902 INFO L175 Difference]: Start difference. First operand has 181 places, 394 transitions, 5824 flow. Second operand 16 states and 3078 transitions. [2023-08-29 02:20:54,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 751 transitions, 10742 flow [2023-08-29 02:20:55,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 751 transitions, 10682 flow, removed 30 selfloop flow, removed 0 redundant places. [2023-08-29 02:20:55,040 INFO L231 Difference]: Finished difference. Result has 206 places, 488 transitions, 8496 flow [2023-08-29 02:20:55,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=5774, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8496, PETRI_PLACES=206, PETRI_TRANSITIONS=488} [2023-08-29 02:20:55,042 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 125 predicate places. [2023-08-29 02:20:55,042 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 488 transitions, 8496 flow [2023-08-29 02:20:55,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:55,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:55,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:20:55,043 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:55,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:55,043 INFO L85 PathProgramCache]: Analyzing trace with hash -560006715, now seen corresponding path program 6 times [2023-08-29 02:20:55,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:55,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156822274] [2023-08-29 02:20:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:55,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156822274] [2023-08-29 02:20:55,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156822274] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:55,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:55,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:55,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805096439] [2023-08-29 02:20:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:55,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:55,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:55,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:20:56,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:20:56,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 488 transitions, 8496 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:56,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:56,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:20:56,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:59,146 INFO L130 PetriNetUnfolder]: 1842/4886 cut-off events. [2023-08-29 02:20:59,146 INFO L131 PetriNetUnfolder]: For 52205/52379 co-relation queries the response was YES. [2023-08-29 02:20:59,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27722 conditions, 4886 events. 1842/4886 cut-off events. For 52205/52379 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 40579 event pairs, 300 based on Foata normal form. 99/4918 useless extension candidates. Maximal degree in co-relation 27660. Up to 1294 conditions per place. [2023-08-29 02:20:59,222 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 428 selfloop transitions, 316 changer transitions 2/784 dead transitions. [2023-08-29 02:20:59,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 784 transitions, 13092 flow [2023-08-29 02:20:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:20:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:20:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2728 transitions. [2023-08-29 02:20:59,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43592201981463724 [2023-08-29 02:20:59,226 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2728 transitions. [2023-08-29 02:20:59,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2728 transitions. [2023-08-29 02:20:59,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:59,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2728 transitions. [2023-08-29 02:20:59,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.85714285714286) internal successors, (2728), 14 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,242 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,243 INFO L175 Difference]: Start difference. First operand has 206 places, 488 transitions, 8496 flow. Second operand 14 states and 2728 transitions. [2023-08-29 02:20:59,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 784 transitions, 13092 flow [2023-08-29 02:20:59,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 784 transitions, 13056 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-29 02:20:59,511 INFO L231 Difference]: Finished difference. Result has 228 places, 570 transitions, 11485 flow [2023-08-29 02:20:59,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=8471, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11485, PETRI_PLACES=228, PETRI_TRANSITIONS=570} [2023-08-29 02:20:59,512 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 147 predicate places. [2023-08-29 02:20:59,513 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 570 transitions, 11485 flow [2023-08-29 02:20:59,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:59,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:59,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:59,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:20:59,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:20:59,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1713013715, now seen corresponding path program 7 times [2023-08-29 02:20:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:59,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848774899] [2023-08-29 02:20:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:59,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:59,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848774899] [2023-08-29 02:20:59,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848774899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:59,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:59,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:59,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288739313] [2023-08-29 02:20:59,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:59,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:20:59,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:59,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:20:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:00,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:00,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 570 transitions, 11485 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:00,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:00,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:00,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:04,235 INFO L130 PetriNetUnfolder]: 2057/5564 cut-off events. [2023-08-29 02:21:04,235 INFO L131 PetriNetUnfolder]: For 75990/76189 co-relation queries the response was YES. [2023-08-29 02:21:04,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33663 conditions, 5564 events. 2057/5564 cut-off events. For 75990/76189 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 48245 event pairs, 248 based on Foata normal form. 136/5623 useless extension candidates. Maximal degree in co-relation 33590. Up to 1388 conditions per place. [2023-08-29 02:21:04,302 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 486 selfloop transitions, 365 changer transitions 3/892 dead transitions. [2023-08-29 02:21:04,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 892 transitions, 16634 flow [2023-08-29 02:21:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:21:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:21:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3264 transitions. [2023-08-29 02:21:04,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42953020134228187 [2023-08-29 02:21:04,306 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3264 transitions. [2023-08-29 02:21:04,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3264 transitions. [2023-08-29 02:21:04,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:04,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3264 transitions. [2023-08-29 02:21:04,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 192.0) internal successors, (3264), 17 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:04,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:04,320 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:04,320 INFO L175 Difference]: Start difference. First operand has 228 places, 570 transitions, 11485 flow. Second operand 17 states and 3264 transitions. [2023-08-29 02:21:04,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 892 transitions, 16634 flow [2023-08-29 02:21:04,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 892 transitions, 16567 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:04,871 INFO L231 Difference]: Finished difference. Result has 254 places, 639 transitions, 14509 flow [2023-08-29 02:21:04,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=11430, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14509, PETRI_PLACES=254, PETRI_TRANSITIONS=639} [2023-08-29 02:21:04,874 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 173 predicate places. [2023-08-29 02:21:04,874 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 639 transitions, 14509 flow [2023-08-29 02:21:04,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:04,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:04,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:04,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:21:04,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:04,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1012230573, now seen corresponding path program 8 times [2023-08-29 02:21:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394680950] [2023-08-29 02:21:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:04,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394680950] [2023-08-29 02:21:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394680950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:05,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:05,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:05,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538245508] [2023-08-29 02:21:05,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:05,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:05,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:05,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:05,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:05,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 639 transitions, 14509 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:05,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:05,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:05,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:09,539 INFO L130 PetriNetUnfolder]: 2475/6633 cut-off events. [2023-08-29 02:21:09,539 INFO L131 PetriNetUnfolder]: For 117794/118007 co-relation queries the response was YES. [2023-08-29 02:21:09,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43300 conditions, 6633 events. 2475/6633 cut-off events. For 117794/118007 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 59793 event pairs, 325 based on Foata normal form. 136/6686 useless extension candidates. Maximal degree in co-relation 43216. Up to 1508 conditions per place. [2023-08-29 02:21:09,596 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 519 selfloop transitions, 413 changer transitions 2/972 dead transitions. [2023-08-29 02:21:09,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 972 transitions, 20851 flow [2023-08-29 02:21:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2716 transitions. [2023-08-29 02:21:09,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-29 02:21:09,603 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2716 transitions. [2023-08-29 02:21:09,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2716 transitions. [2023-08-29 02:21:09,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:09,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2716 transitions. [2023-08-29 02:21:09,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.0) internal successors, (2716), 14 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:09,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:09,611 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:09,611 INFO L175 Difference]: Start difference. First operand has 254 places, 639 transitions, 14509 flow. Second operand 14 states and 2716 transitions. [2023-08-29 02:21:09,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 972 transitions, 20851 flow [2023-08-29 02:21:10,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 972 transitions, 20771 flow, removed 29 selfloop flow, removed 5 redundant places. [2023-08-29 02:21:10,494 INFO L231 Difference]: Finished difference. Result has 274 places, 737 transitions, 18678 flow [2023-08-29 02:21:10,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=14443, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18678, PETRI_PLACES=274, PETRI_TRANSITIONS=737} [2023-08-29 02:21:10,495 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 193 predicate places. [2023-08-29 02:21:10,495 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 737 transitions, 18678 flow [2023-08-29 02:21:10,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:10,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:10,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:10,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:21:10,496 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:10,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1332284735, now seen corresponding path program 9 times [2023-08-29 02:21:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790719083] [2023-08-29 02:21:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:11,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:11,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790719083] [2023-08-29 02:21:11,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790719083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:11,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:11,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045723769] [2023-08-29 02:21:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:11,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:11,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:11,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-29 02:21:11,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 737 transitions, 18678 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:11,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:11,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-29 02:21:11,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:15,118 INFO L130 PetriNetUnfolder]: 2506/6722 cut-off events. [2023-08-29 02:21:15,118 INFO L131 PetriNetUnfolder]: For 147548/147776 co-relation queries the response was YES. [2023-08-29 02:21:15,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46950 conditions, 6722 events. 2506/6722 cut-off events. For 147548/147776 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 60946 event pairs, 323 based on Foata normal form. 124/6772 useless extension candidates. Maximal degree in co-relation 46855. Up to 2981 conditions per place. [2023-08-29 02:21:15,279 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 407 selfloop transitions, 420 changer transitions 0/865 dead transitions. [2023-08-29 02:21:15,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 865 transitions, 21876 flow [2023-08-29 02:21:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:21:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:21:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2106 transitions. [2023-08-29 02:21:15,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4283099450884686 [2023-08-29 02:21:15,282 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2106 transitions. [2023-08-29 02:21:15,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2106 transitions. [2023-08-29 02:21:15,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:15,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2106 transitions. [2023-08-29 02:21:15,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.45454545454547) internal successors, (2106), 11 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:15,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:15,287 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:15,287 INFO L175 Difference]: Start difference. First operand has 274 places, 737 transitions, 18678 flow. Second operand 11 states and 2106 transitions. [2023-08-29 02:21:15,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 865 transitions, 21876 flow [2023-08-29 02:21:16,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 865 transitions, 21788 flow, removed 44 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:16,366 INFO L231 Difference]: Finished difference. Result has 289 places, 756 transitions, 20630 flow [2023-08-29 02:21:16,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=18602, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20630, PETRI_PLACES=289, PETRI_TRANSITIONS=756} [2023-08-29 02:21:16,368 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 208 predicate places. [2023-08-29 02:21:16,368 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 756 transitions, 20630 flow [2023-08-29 02:21:16,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:16,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:16,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:16,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:21:16,369 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:16,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1575505595, now seen corresponding path program 10 times [2023-08-29 02:21:16,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:16,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636871189] [2023-08-29 02:21:16,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:16,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:16,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:16,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636871189] [2023-08-29 02:21:16,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636871189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:16,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:16,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809878919] [2023-08-29 02:21:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:16,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:16,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:16,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:16,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:17,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:17,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 756 transitions, 20630 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:17,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:17,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:17,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:21,449 INFO L130 PetriNetUnfolder]: 2859/7681 cut-off events. [2023-08-29 02:21:21,449 INFO L131 PetriNetUnfolder]: For 198617/198930 co-relation queries the response was YES. [2023-08-29 02:21:21,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55946 conditions, 7681 events. 2859/7681 cut-off events. For 198617/198930 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 71693 event pairs, 436 based on Foata normal form. 210/7798 useless extension candidates. Maximal degree in co-relation 55845. Up to 1905 conditions per place. [2023-08-29 02:21:21,527 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 600 selfloop transitions, 458 changer transitions 2/1098 dead transitions. [2023-08-29 02:21:21,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1098 transitions, 28104 flow [2023-08-29 02:21:21,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2703 transitions. [2023-08-29 02:21:21,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4319271332694152 [2023-08-29 02:21:21,533 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2703 transitions. [2023-08-29 02:21:21,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2703 transitions. [2023-08-29 02:21:21,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:21,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2703 transitions. [2023-08-29 02:21:21,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.07142857142858) internal successors, (2703), 14 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:21,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:21,540 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:21,540 INFO L175 Difference]: Start difference. First operand has 289 places, 756 transitions, 20630 flow. Second operand 14 states and 2703 transitions. [2023-08-29 02:21:21,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 1098 transitions, 28104 flow [2023-08-29 02:21:23,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1098 transitions, 27851 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-29 02:21:23,147 INFO L231 Difference]: Finished difference. Result has 309 places, 849 transitions, 25182 flow [2023-08-29 02:21:23,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=20431, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25182, PETRI_PLACES=309, PETRI_TRANSITIONS=849} [2023-08-29 02:21:23,149 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 228 predicate places. [2023-08-29 02:21:23,149 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 849 transitions, 25182 flow [2023-08-29 02:21:23,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:23,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:23,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:23,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:21:23,150 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:23,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1402386963, now seen corresponding path program 11 times [2023-08-29 02:21:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412441481] [2023-08-29 02:21:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:23,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412441481] [2023-08-29 02:21:23,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412441481] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:23,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:23,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:23,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679025030] [2023-08-29 02:21:23,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:23,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:23,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:23,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:23,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:24,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:24,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 849 transitions, 25182 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:24,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:24,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:24,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:29,086 INFO L130 PetriNetUnfolder]: 3037/8128 cut-off events. [2023-08-29 02:21:29,086 INFO L131 PetriNetUnfolder]: For 247947/248303 co-relation queries the response was YES. [2023-08-29 02:21:29,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62492 conditions, 8128 events. 3037/8128 cut-off events. For 247947/248303 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 76773 event pairs, 354 based on Foata normal form. 222/8258 useless extension candidates. Maximal degree in co-relation 62380. Up to 2533 conditions per place. [2023-08-29 02:21:29,174 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 471 selfloop transitions, 579 changer transitions 2/1090 dead transitions. [2023-08-29 02:21:29,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1090 transitions, 30716 flow [2023-08-29 02:21:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:21:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:21:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2507 transitions. [2023-08-29 02:21:29,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4314231629667871 [2023-08-29 02:21:29,176 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2507 transitions. [2023-08-29 02:21:29,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2507 transitions. [2023-08-29 02:21:29,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:29,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2507 transitions. [2023-08-29 02:21:29,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 192.84615384615384) internal successors, (2507), 13 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:29,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:29,183 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:29,183 INFO L175 Difference]: Start difference. First operand has 309 places, 849 transitions, 25182 flow. Second operand 13 states and 2507 transitions. [2023-08-29 02:21:29,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1090 transitions, 30716 flow [2023-08-29 02:21:31,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1090 transitions, 30614 flow, removed 51 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:31,249 INFO L231 Difference]: Finished difference. Result has 332 places, 901 transitions, 29242 flow [2023-08-29 02:21:31,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=25098, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=527, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29242, PETRI_PLACES=332, PETRI_TRANSITIONS=901} [2023-08-29 02:21:31,250 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 251 predicate places. [2023-08-29 02:21:31,250 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 901 transitions, 29242 flow [2023-08-29 02:21:31,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:31,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:31,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:31,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:21:31,251 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:31,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1428638313, now seen corresponding path program 12 times [2023-08-29 02:21:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:31,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966770878] [2023-08-29 02:21:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:31,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:31,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:31,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966770878] [2023-08-29 02:21:31,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966770878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:31,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:31,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:31,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963989731] [2023-08-29 02:21:31,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:31,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:31,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:31,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:32,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:32,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 901 transitions, 29242 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:32,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:32,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:32,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:37,884 INFO L130 PetriNetUnfolder]: 3245/8734 cut-off events. [2023-08-29 02:21:37,885 INFO L131 PetriNetUnfolder]: For 321510/321894 co-relation queries the response was YES. [2023-08-29 02:21:37,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70725 conditions, 8734 events. 3245/8734 cut-off events. For 321510/321894 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 83998 event pairs, 402 based on Foata normal form. 244/8874 useless extension candidates. Maximal degree in co-relation 70602. Up to 2559 conditions per place. [2023-08-29 02:21:37,986 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 503 selfloop transitions, 607 changer transitions 2/1150 dead transitions. [2023-08-29 02:21:37,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1150 transitions, 35572 flow [2023-08-29 02:21:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2664 transitions. [2023-08-29 02:21:37,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42569511025886864 [2023-08-29 02:21:37,989 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2664 transitions. [2023-08-29 02:21:37,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2664 transitions. [2023-08-29 02:21:37,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:37,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2664 transitions. [2023-08-29 02:21:37,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 190.28571428571428) internal successors, (2664), 14 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:37,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:37,995 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:37,996 INFO L175 Difference]: Start difference. First operand has 332 places, 901 transitions, 29242 flow. Second operand 14 states and 2664 transitions. [2023-08-29 02:21:37,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1150 transitions, 35572 flow [2023-08-29 02:21:41,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1150 transitions, 35518 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:41,096 INFO L231 Difference]: Finished difference. Result has 357 places, 962 transitions, 33990 flow [2023-08-29 02:21:41,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=29188, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33990, PETRI_PLACES=357, PETRI_TRANSITIONS=962} [2023-08-29 02:21:41,102 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 276 predicate places. [2023-08-29 02:21:41,102 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 962 transitions, 33990 flow [2023-08-29 02:21:41,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:41,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:41,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:41,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:21:41,107 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:41,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:41,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1047909333, now seen corresponding path program 13 times [2023-08-29 02:21:41,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:41,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979700832] [2023-08-29 02:21:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:41,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:41,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:41,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979700832] [2023-08-29 02:21:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979700832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:41,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:41,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341967027] [2023-08-29 02:21:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:41,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:42,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:42,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 962 transitions, 33990 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:42,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:42,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:42,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:47,664 INFO L130 PetriNetUnfolder]: 3402/9226 cut-off events. [2023-08-29 02:21:47,664 INFO L131 PetriNetUnfolder]: For 398415/398684 co-relation queries the response was YES. [2023-08-29 02:21:47,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78075 conditions, 9226 events. 3402/9226 cut-off events. For 398415/398684 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 90339 event pairs, 488 based on Foata normal form. 139/9257 useless extension candidates. Maximal degree in co-relation 77940. Up to 2445 conditions per place. [2023-08-29 02:21:47,804 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 562 selfloop transitions, 630 changer transitions 2/1232 dead transitions. [2023-08-29 02:21:47,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1232 transitions, 40787 flow [2023-08-29 02:21:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:47,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2685 transitions. [2023-08-29 02:21:47,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290508149568552 [2023-08-29 02:21:47,807 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2685 transitions. [2023-08-29 02:21:47,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2685 transitions. [2023-08-29 02:21:47,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:47,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2685 transitions. [2023-08-29 02:21:47,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 191.78571428571428) internal successors, (2685), 14 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:47,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:47,813 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:47,813 INFO L175 Difference]: Start difference. First operand has 357 places, 962 transitions, 33990 flow. Second operand 14 states and 2685 transitions. [2023-08-29 02:21:47,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1232 transitions, 40787 flow [2023-08-29 02:21:52,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1232 transitions, 40624 flow, removed 79 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:52,447 INFO L231 Difference]: Finished difference. Result has 380 places, 1020 transitions, 38743 flow [2023-08-29 02:21:52,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=33859, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=572, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38743, PETRI_PLACES=380, PETRI_TRANSITIONS=1020} [2023-08-29 02:21:52,448 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 299 predicate places. [2023-08-29 02:21:52,449 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1020 transitions, 38743 flow [2023-08-29 02:21:52,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:52,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:52,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:52,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:21:52,449 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:52,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:52,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1392959553, now seen corresponding path program 14 times [2023-08-29 02:21:52,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:52,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137157366] [2023-08-29 02:21:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:52,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:52,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:52,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:52,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137157366] [2023-08-29 02:21:52,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137157366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:52,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:52,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:52,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312552596] [2023-08-29 02:21:52,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:52,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:52,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:52,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:52,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:53,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:21:53,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1020 transitions, 38743 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:53,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:53,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:21:53,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:59,396 INFO L130 PetriNetUnfolder]: 3554/9656 cut-off events. [2023-08-29 02:21:59,396 INFO L131 PetriNetUnfolder]: For 481160/481460 co-relation queries the response was YES. [2023-08-29 02:21:59,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85243 conditions, 9656 events. 3554/9656 cut-off events. For 481160/481460 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 95800 event pairs, 501 based on Foata normal form. 140/9681 useless extension candidates. Maximal degree in co-relation 85098. Up to 2757 conditions per place. [2023-08-29 02:21:59,705 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 554 selfloop transitions, 691 changer transitions 2/1285 dead transitions. [2023-08-29 02:21:59,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1285 transitions, 45464 flow [2023-08-29 02:21:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2698 transitions. [2023-08-29 02:21:59,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43112815596037074 [2023-08-29 02:21:59,708 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2698 transitions. [2023-08-29 02:21:59,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2698 transitions. [2023-08-29 02:21:59,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:59,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2698 transitions. [2023-08-29 02:21:59,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 192.71428571428572) internal successors, (2698), 14 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:59,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:59,716 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:59,716 INFO L175 Difference]: Start difference. First operand has 380 places, 1020 transitions, 38743 flow. Second operand 14 states and 2698 transitions. [2023-08-29 02:21:59,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1285 transitions, 45464 flow [2023-08-29 02:22:04,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1285 transitions, 45329 flow, removed 57 selfloop flow, removed 1 redundant places. [2023-08-29 02:22:05,011 INFO L231 Difference]: Finished difference. Result has 403 places, 1073 transitions, 43687 flow [2023-08-29 02:22:05,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=38632, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43687, PETRI_PLACES=403, PETRI_TRANSITIONS=1073} [2023-08-29 02:22:05,013 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 322 predicate places. [2023-08-29 02:22:05,013 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1073 transitions, 43687 flow [2023-08-29 02:22:05,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:05,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:05,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:22:05,014 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:05,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1218767647, now seen corresponding path program 1 times [2023-08-29 02:22:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:05,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284946885] [2023-08-29 02:22:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:05,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284946885] [2023-08-29 02:22:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284946885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:05,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:05,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783280222] [2023-08-29 02:22:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:05,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:22:05,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:05,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:22:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:22:06,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 02:22:06,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1073 transitions, 43687 flow. Second operand has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:06,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:06,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 02:22:06,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:13,870 INFO L130 PetriNetUnfolder]: 3684/10023 cut-off events. [2023-08-29 02:22:13,870 INFO L131 PetriNetUnfolder]: For 569086/569404 co-relation queries the response was YES. [2023-08-29 02:22:14,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92255 conditions, 10023 events. 3684/10023 cut-off events. For 569086/569404 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 100482 event pairs, 402 based on Foata normal form. 185/10084 useless extension candidates. Maximal degree in co-relation 92099. Up to 2756 conditions per place. [2023-08-29 02:22:14,051 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 588 selfloop transitions, 724 changer transitions 3/1353 dead transitions. [2023-08-29 02:22:14,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 1353 transitions, 50188 flow [2023-08-29 02:22:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:22:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:22:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3447 transitions. [2023-08-29 02:22:14,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42841163310961966 [2023-08-29 02:22:14,054 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3447 transitions. [2023-08-29 02:22:14,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3447 transitions. [2023-08-29 02:22:14,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:14,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3447 transitions. [2023-08-29 02:22:14,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 191.5) internal successors, (3447), 18 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:14,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:14,063 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:14,063 INFO L175 Difference]: Start difference. First operand has 403 places, 1073 transitions, 43687 flow. Second operand 18 states and 3447 transitions. [2023-08-29 02:22:14,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 1353 transitions, 50188 flow [2023-08-29 02:22:20,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1353 transitions, 50045 flow, removed 43 selfloop flow, removed 3 redundant places. [2023-08-29 02:22:20,621 INFO L231 Difference]: Finished difference. Result has 429 places, 1116 transitions, 48432 flow [2023-08-29 02:22:20,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=43570, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=682, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=48432, PETRI_PLACES=429, PETRI_TRANSITIONS=1116} [2023-08-29 02:22:20,623 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 348 predicate places. [2023-08-29 02:22:20,623 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1116 transitions, 48432 flow [2023-08-29 02:22:20,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:20,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:20,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:20,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:22:20,624 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:20,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1078311815, now seen corresponding path program 1 times [2023-08-29 02:22:20,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:20,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939947268] [2023-08-29 02:22:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:20,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:20,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939947268] [2023-08-29 02:22:20,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939947268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:20,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:20,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:22:20,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31515284] [2023-08-29 02:22:20,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:20,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:20,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:20,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:21,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-29 02:22:21,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1116 transitions, 48432 flow. Second operand has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:21,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:21,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-29 02:22:21,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:29,926 INFO L130 PetriNetUnfolder]: 6209/14894 cut-off events. [2023-08-29 02:22:29,927 INFO L131 PetriNetUnfolder]: For 833169/833479 co-relation queries the response was YES. [2023-08-29 02:22:30,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127358 conditions, 14894 events. 6209/14894 cut-off events. For 833169/833479 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 143057 event pairs, 2632 based on Foata normal form. 0/14564 useless extension candidates. Maximal degree in co-relation 127191. Up to 11607 conditions per place. [2023-08-29 02:22:30,165 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1020 selfloop transitions, 170 changer transitions 0/1387 dead transitions. [2023-08-29 02:22:30,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1387 transitions, 61198 flow [2023-08-29 02:22:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2023-08-29 02:22:30,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4343773303504847 [2023-08-29 02:22:30,167 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2023-08-29 02:22:30,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2023-08-29 02:22:30,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:30,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2023-08-29 02:22:30,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:30,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:30,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:30,170 INFO L175 Difference]: Start difference. First operand has 429 places, 1116 transitions, 48432 flow. Second operand 6 states and 1165 transitions. [2023-08-29 02:22:30,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1387 transitions, 61198 flow [2023-08-29 02:22:40,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 1387 transitions, 60988 flow, removed 59 selfloop flow, removed 5 redundant places. [2023-08-29 02:22:40,698 INFO L231 Difference]: Finished difference. Result has 433 places, 1255 transitions, 52608 flow [2023-08-29 02:22:40,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=48290, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1018, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=52608, PETRI_PLACES=433, PETRI_TRANSITIONS=1255} [2023-08-29 02:22:40,699 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 352 predicate places. [2023-08-29 02:22:40,699 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1255 transitions, 52608 flow [2023-08-29 02:22:40,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:40,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:40,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:40,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:22:40,700 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:40,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1718345549, now seen corresponding path program 1 times [2023-08-29 02:22:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:40,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578017978] [2023-08-29 02:22:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:40,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:40,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:40,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578017978] [2023-08-29 02:22:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578017978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:40,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:22:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258507083] [2023-08-29 02:22:40,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:40,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:41,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 447 [2023-08-29 02:22:41,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1255 transitions, 52608 flow. Second operand has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:41,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:41,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 447 [2023-08-29 02:22:41,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:51,583 INFO L130 PetriNetUnfolder]: 7377/18039 cut-off events. [2023-08-29 02:22:51,583 INFO L131 PetriNetUnfolder]: For 1092755/1093457 co-relation queries the response was YES. [2023-08-29 02:22:51,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163297 conditions, 18039 events. 7377/18039 cut-off events. For 1092755/1093457 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 183638 event pairs, 871 based on Foata normal form. 75/17618 useless extension candidates. Maximal degree in co-relation 163127. Up to 10029 conditions per place. [2023-08-29 02:22:51,957 INFO L137 encePairwiseOnDemand]: 425/447 looper letters, 1040 selfloop transitions, 752 changer transitions 4/2149 dead transitions. [2023-08-29 02:22:51,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 2149 transitions, 98689 flow [2023-08-29 02:22:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:51,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-08-29 02:22:51,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679343773303505 [2023-08-29 02:22:51,965 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-08-29 02:22:51,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-08-29 02:22:51,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:51,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-08-29 02:22:51,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:51,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:51,974 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:51,974 INFO L175 Difference]: Start difference. First operand has 433 places, 1255 transitions, 52608 flow. Second operand 6 states and 1255 transitions. [2023-08-29 02:22:51,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 2149 transitions, 98689 flow [2023-08-29 02:23:08,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 2149 transitions, 98217 flow, removed 236 selfloop flow, removed 0 redundant places. [2023-08-29 02:23:08,979 INFO L231 Difference]: Finished difference. Result has 443 places, 1829 transitions, 85274 flow [2023-08-29 02:23:08,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=52136, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85274, PETRI_PLACES=443, PETRI_TRANSITIONS=1829} [2023-08-29 02:23:08,981 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 362 predicate places. [2023-08-29 02:23:08,981 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 1829 transitions, 85274 flow [2023-08-29 02:23:08,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:08,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:08,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:08,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:23:08,981 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:23:08,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:08,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1773728333, now seen corresponding path program 1 times [2023-08-29 02:23:08,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:08,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055434136] [2023-08-29 02:23:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:08,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:23:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:09,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055434136] [2023-08-29 02:23:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055434136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:09,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:23:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395210938] [2023-08-29 02:23:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:09,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:23:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:23:09,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:23:09,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-29 02:23:09,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1829 transitions, 85274 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:09,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:09,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-29 02:23:09,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:26,940 INFO L130 PetriNetUnfolder]: 8416/19833 cut-off events. [2023-08-29 02:23:26,940 INFO L131 PetriNetUnfolder]: For 1170054/1170717 co-relation queries the response was YES. [2023-08-29 02:23:27,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189808 conditions, 19833 events. 8416/19833 cut-off events. For 1170054/1170717 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 196563 event pairs, 2075 based on Foata normal form. 106/19614 useless extension candidates. Maximal degree in co-relation 189633. Up to 12673 conditions per place. [2023-08-29 02:23:27,730 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1281 selfloop transitions, 488 changer transitions 2/2109 dead transitions. [2023-08-29 02:23:27,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 2109 transitions, 97583 flow [2023-08-29 02:23:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:23:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:23:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2788 transitions. [2023-08-29 02:23:27,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41580909768829233 [2023-08-29 02:23:27,733 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2788 transitions. [2023-08-29 02:23:27,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2788 transitions. [2023-08-29 02:23:27,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:27,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2788 transitions. [2023-08-29 02:23:27,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.86666666666667) internal successors, (2788), 15 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:27,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:27,740 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:27,740 INFO L175 Difference]: Start difference. First operand has 443 places, 1829 transitions, 85274 flow. Second operand 15 states and 2788 transitions. [2023-08-29 02:23:27,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 2109 transitions, 97583 flow [2023-08-29 02:23:49,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 2109 transitions, 96779 flow, removed 402 selfloop flow, removed 0 redundant places. [2023-08-29 02:23:49,073 INFO L231 Difference]: Finished difference. Result has 461 places, 1919 transitions, 89455 flow [2023-08-29 02:23:49,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=84494, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=89455, PETRI_PLACES=461, PETRI_TRANSITIONS=1919} [2023-08-29 02:23:49,075 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 380 predicate places. [2023-08-29 02:23:49,075 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1919 transitions, 89455 flow [2023-08-29 02:23:49,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:49,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:49,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:49,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:23:49,075 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:23:49,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1473536571, now seen corresponding path program 1 times [2023-08-29 02:23:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:49,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342077740] [2023-08-29 02:23:49,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:49,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:23:49,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:49,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342077740] [2023-08-29 02:23:49,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342077740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:49,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:49,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 02:23:49,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103899270] [2023-08-29 02:23:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:49,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:23:49,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:49,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:23:49,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:23:51,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 02:23:51,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1919 transitions, 89455 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:51,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:51,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 02:23:51,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:11,827 INFO L130 PetriNetUnfolder]: 8780/20277 cut-off events. [2023-08-29 02:24:11,828 INFO L131 PetriNetUnfolder]: For 1212837/1213428 co-relation queries the response was YES. [2023-08-29 02:24:12,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195716 conditions, 20277 events. 8780/20277 cut-off events. For 1212837/1213428 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 198453 event pairs, 1730 based on Foata normal form. 32/19980 useless extension candidates. Maximal degree in co-relation 195536. Up to 10564 conditions per place. [2023-08-29 02:24:12,467 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1174 selfloop transitions, 567 changer transitions 0/2150 dead transitions. [2023-08-29 02:24:12,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 2150 transitions, 99421 flow [2023-08-29 02:24:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 02:24:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 02:24:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3170 transitions. [2023-08-29 02:24:12,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3732485576357 [2023-08-29 02:24:12,470 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3170 transitions. [2023-08-29 02:24:12,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3170 transitions. [2023-08-29 02:24:12,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:12,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3170 transitions. [2023-08-29 02:24:12,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 166.8421052631579) internal successors, (3170), 19 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:12,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:12,477 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:12,477 INFO L175 Difference]: Start difference. First operand has 461 places, 1919 transitions, 89455 flow. Second operand 19 states and 3170 transitions. [2023-08-29 02:24:12,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 2150 transitions, 99421 flow [2023-08-29 02:24:37,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 2150 transitions, 99344 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-29 02:24:37,430 INFO L231 Difference]: Finished difference. Result has 485 places, 1992 transitions, 94557 flow [2023-08-29 02:24:37,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=89378, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=497, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=94557, PETRI_PLACES=485, PETRI_TRANSITIONS=1992} [2023-08-29 02:24:37,432 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 404 predicate places. [2023-08-29 02:24:37,448 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 1992 transitions, 94557 flow [2023-08-29 02:24:37,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:37,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:24:37,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:24:37,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:24:37,449 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:24:37,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:24:37,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1789354223, now seen corresponding path program 2 times [2023-08-29 02:24:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:24:37,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339733688] [2023-08-29 02:24:37,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:24:37,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:24:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:24:38,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:38,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339733688] [2023-08-29 02:24:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339733688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:38,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:38,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 02:24:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839666834] [2023-08-29 02:24:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:38,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:24:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:24:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:24:39,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 02:24:39,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1992 transitions, 94557 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:39,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:39,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 02:24:39,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:25:02,119 INFO L130 PetriNetUnfolder]: 11131/25721 cut-off events. [2023-08-29 02:25:02,120 INFO L131 PetriNetUnfolder]: For 1668462/1669203 co-relation queries the response was YES. [2023-08-29 02:25:03,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261845 conditions, 25721 events. 11131/25721 cut-off events. For 1668462/1669203 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 261137 event pairs, 2808 based on Foata normal form. 0/25368 useless extension candidates. Maximal degree in co-relation 261655. Up to 11581 conditions per place. [2023-08-29 02:25:03,131 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1974 selfloop transitions, 359 changer transitions 0/2742 dead transitions. [2023-08-29 02:25:03,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2742 transitions, 125166 flow [2023-08-29 02:25:03,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:25:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:25:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2881 transitions. [2023-08-29 02:25:03,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37912883274115017 [2023-08-29 02:25:03,134 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2881 transitions. [2023-08-29 02:25:03,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2881 transitions. [2023-08-29 02:25:03,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:25:03,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2881 transitions. [2023-08-29 02:25:03,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 169.47058823529412) internal successors, (2881), 17 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:03,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:03,141 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:03,141 INFO L175 Difference]: Start difference. First operand has 485 places, 1992 transitions, 94557 flow. Second operand 17 states and 2881 transitions. [2023-08-29 02:25:03,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2742 transitions, 125166 flow [2023-08-29 02:25:43,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 2742 transitions, 124739 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-29 02:25:43,146 INFO L231 Difference]: Finished difference. Result has 506 places, 2222 transitions, 107847 flow [2023-08-29 02:25:43,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=94209, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=107847, PETRI_PLACES=506, PETRI_TRANSITIONS=2222} [2023-08-29 02:25:43,148 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 425 predicate places. [2023-08-29 02:25:43,148 INFO L495 AbstractCegarLoop]: Abstraction has has 506 places, 2222 transitions, 107847 flow [2023-08-29 02:25:43,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:43,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:43,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:25:43,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:25:43,149 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:25:43,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash 268536179, now seen corresponding path program 3 times [2023-08-29 02:25:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:43,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331338803] [2023-08-29 02:25:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:25:43,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:43,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331338803] [2023-08-29 02:25:43,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331338803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:43,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:43,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 02:25:43,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321375567] [2023-08-29 02:25:43,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:43,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:25:43,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:43,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:25:43,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:25:44,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 02:25:44,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 2222 transitions, 107847 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:44,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:44,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 02:25:44,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:26:21,754 INFO L130 PetriNetUnfolder]: 14586/33285 cut-off events. [2023-08-29 02:26:21,754 INFO L131 PetriNetUnfolder]: For 2211583/2212597 co-relation queries the response was YES. [2023-08-29 02:26:22,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340606 conditions, 33285 events. 14586/33285 cut-off events. For 2211583/2212597 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 349582 event pairs, 3408 based on Foata normal form. 35/32972 useless extension candidates. Maximal degree in co-relation 340404. Up to 15822 conditions per place. [2023-08-29 02:26:23,026 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 2163 selfloop transitions, 548 changer transitions 0/3120 dead transitions. [2023-08-29 02:26:23,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 3120 transitions, 149475 flow [2023-08-29 02:26:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:26:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:26:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2533 transitions. [2023-08-29 02:26:23,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-29 02:26:23,052 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2533 transitions. [2023-08-29 02:26:23,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2533 transitions. [2023-08-29 02:26:23,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:26:23,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2533 transitions. [2023-08-29 02:26:23,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 168.86666666666667) internal successors, (2533), 15 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:23,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:23,068 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:23,068 INFO L175 Difference]: Start difference. First operand has 506 places, 2222 transitions, 107847 flow. Second operand 15 states and 2533 transitions. [2023-08-29 02:26:23,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 3120 transitions, 149475 flow [2023-08-29 02:27:21,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 3120 transitions, 149404 flow, removed 30 selfloop flow, removed 2 redundant places. [2023-08-29 02:27:22,024 INFO L231 Difference]: Finished difference. Result has 529 places, 2486 transitions, 124953 flow [2023-08-29 02:27:22,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=107777, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=124953, PETRI_PLACES=529, PETRI_TRANSITIONS=2486} [2023-08-29 02:27:22,026 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 448 predicate places. [2023-08-29 02:27:22,026 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 2486 transitions, 124953 flow [2023-08-29 02:27:22,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:27:22,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:27:22,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:27:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 02:27:22,027 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:27:22,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:27:22,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1339649303, now seen corresponding path program 4 times [2023-08-29 02:27:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:27:22,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667499476] [2023-08-29 02:27:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:27:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:27:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:27:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:27:22,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:27:22,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667499476] [2023-08-29 02:27:22,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667499476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:27:22,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:27:22,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 02:27:22,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862235709] [2023-08-29 02:27:22,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:27:22,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:27:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:27:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:27:22,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:27:24,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 02:27:24,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 2486 transitions, 124953 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:27:24,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:27:24,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 02:27:24,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:28:05,634 INFO L130 PetriNetUnfolder]: 14707/33470 cut-off events. [2023-08-29 02:28:05,635 INFO L131 PetriNetUnfolder]: For 2337308/2338376 co-relation queries the response was YES. [2023-08-29 02:28:07,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352620 conditions, 33470 events. 14707/33470 cut-off events. For 2337308/2338376 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 350016 event pairs, 3198 based on Foata normal form. 45/33160 useless extension candidates. Maximal degree in co-relation 352406. Up to 19098 conditions per place. [2023-08-29 02:28:07,207 INFO L137 encePairwiseOnDemand]: 434/447 looper letters, 1519 selfloop transitions, 824 changer transitions 0/2752 dead transitions. [2023-08-29 02:28:07,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 2752 transitions, 136905 flow [2023-08-29 02:28:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:28:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:28:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3027 transitions. [2023-08-29 02:28:07,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3762117822520507 [2023-08-29 02:28:07,210 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3027 transitions. [2023-08-29 02:28:07,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3027 transitions. [2023-08-29 02:28:07,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:28:07,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3027 transitions. [2023-08-29 02:28:07,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:28:07,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:28:07,217 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:28:07,217 INFO L175 Difference]: Start difference. First operand has 529 places, 2486 transitions, 124953 flow. Second operand 18 states and 3027 transitions. [2023-08-29 02:28:07,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 2752 transitions, 136905 flow Killed by 15